Development of ASL skills among the deaf supports the idea that

Development of ASL skills among the deaf supports the idea that
a.   language development is biologically based.
b.   creole develops from simpler pidgin.
c.   Broca’s area has been fast-mapped by anatomists.
d.   phonological awareness is essential for comprehension.


The child’s knowledge about language and its properties is her
a.   object scope constraint.
b.   metalinguistic awareness.
c.   multimodal motherese.
d.   fast-mapping overextension.


Speaking to parents and children, a principal repeats a speech, first at a high level for parents and then at a simple level for children. She displays
a.   lexical contrast constraint.
b.   mutual exclusivity constraint.
c.   sociolinguistic awareness.
d.   a holophrastic naming explosion.